Compare this test’s laboratory options
Calcium
Access Labcorp Draw · Access Medical Labs · Quest Diagnostics3 test optionsFrom $3.53
Calcium
Access Labcorp Draw · Access Medical Labs · Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Calcium Test
This test measures the total amount of calcium in the blood, including both bound and free calcium. This essential mineral plays a crucial role in bone health, muscle contraction, nerve function, and heart function. The test is used to evaluate parathyroid function, monitor conditions that affect calcium metabolism such as kidney disease, hyperparathyroidism, and bone diseases. Abnormal levels can indicate a range of issues, from vitamin D deficiency to serious kidney or parathyroid disorders.
What patients is this test right for?This test may be recommended for individuals showing symptoms of low or high calcium levels, or those with conditions affecting bone metabolism, heart health, or kidney function.
What type of sample is required for this test?1 mL serum.
Sodium heparin (green-top) tube • Lithium heparin (green-top) tube.
Test ResourcesFor more information, please consult your healthcare provider.
Additional test information
Calcium Test – this test measures the total amount of calcium in the blood, including both bound and free calcium. This essential mineral plays a crucial role in bone health, muscle contraction, nerve function, and heart function. The test is used to evaluate parathyroid function, monitor conditions that affect calcium metabolism such as kidney disease, hyperparathyroidism, and bone diseases. Abnormal levels can indicate a range of issues, from vitamin D deficiency to serious kidney or parathyroid disorders.
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Calcium Test
This test measures the total amount of calcium in the blood, including both bound and free calcium. This essential mineral plays a crucial role in bone health, muscle contraction, nerve function, and heart function. The test is used to evaluate parathyroid function, monitor conditions that affect calcium metabolism such as kidney disease, hyperparathyroidism, and bone diseases. Abnormal levels can indicate a range of issues, from vitamin D deficiency to serious kidney or parathyroid disorders.
What patients is this test right for?This test may be recommended for individuals showing symptoms of low or high calcium levels, or those with conditions affecting bone metabolism, heart health, or kidney function.
What type of sample is required for this test?1 mL serum.
Sodium heparin (green-top) tube • Lithium heparin (green-top) tube.
Test ResourcesFor more information, please consult your healthcare provider.
Additional details
Calcium Test - this test measures the total amount of calcium in the blood, including both bound and free calcium. This essential mineral plays a crucial role in bone health, muscle contraction, nerve function, and heart function. The test is used to evaluate parathyroid function, monitor conditions that affect calcium metabolism such as kidney disease, hyperparathyroidism, and bone diseases. Abnormal levels can indicate a range of issues, from vitamin D deficiency to serious kidney or parathyroid disorders.
Highlighted health areas
- Bone/Joint
- Electrolytes
- Nutrition
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Calcium